Display shows dr and spa may shut down heating; water level may be low.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Low spa water level, Air lock after draining/refilling, Blocked suction or filter, Failed circulation pump

Safety first: Turn off power immediately to prevent heater damage.

Check water level: Fill the spa so that the water level is above all jets and the skimmer opening.
Clean filter: Remove and rinse the filter cartridge to ensure unrestricted flow.
Bleed air from heater: Loosen a union at the heater or use the bleed screw to release trapped air until water flows.
Restore power and test: Turn power back on and run the circulation cycle. If dr persists, the circulation pump may not be moving water and should be inspected or replaced.

Medium 3/5

Circulation Pump

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